package com.sishu.njrtsdms.core;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.map.MapUtil;
import cn.hutool.core.util.StrUtil;
import com.sishu.njrtsdms.constant.http.HttpStatus;
import com.sishu.njrtsdms.domain.core.AjaxResult;
import com.sishu.njrtsdms.domain.core.R;
import com.sishu.njrtsdms.exception.ServiceException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.validation.ConstraintViolationException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.validation.BindException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.List;

/**
 * 全局异常处理器
 *
 * @author jtc
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 权限校验异常
     */
    @ExceptionHandler(AccessDeniedException.class)
    public AjaxResult handleAccessDeniedException(AccessDeniedException e,
                                                  HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',权限校验失败'{}'", requestURI, e.getMessage());
        return AjaxResult.error(HttpStatus.FORBIDDEN, "没有权限，请联系管理员授权");
    }

    /**
     * 请求方式不支持
     */
    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
    public AjaxResult handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e,
                                                          HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
        return AjaxResult.error(e.getMessage());
    }

    /**
     * 业务异常
     */
    @ExceptionHandler(ServiceException.class)
    public AjaxResult handleServiceException(ServiceException e,
                                             HttpServletRequest request) {
        log.error(e.getMessage(), e);
        Integer code = e.getCode();
        return code != null ? AjaxResult.error(code, e.getMessage()) :
                AjaxResult.error(e.getMessage());
    }

    /**
     * 拦截未知的运行时异常
     */
    @ExceptionHandler(RuntimeException.class)
    public AjaxResult handleRuntimeException(RuntimeException e,
                                             HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生未知异常.", requestURI, e);
        return AjaxResult.error(e.getMessage());
    }


    /**
     * JSON解析异常
     */
    @ExceptionHandler(HttpMessageNotReadableException.class)
    public AjaxResult handleException(HttpMessageNotReadableException e,
                                      HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生系统异常.", requestURI, e);
        return AjaxResult.error("参数JSON解析异常,请确认参数格式无误");
    }


    /**
     * 系统异常
     */
    @ExceptionHandler(Exception.class)
    public AjaxResult handleException(Exception e,
                                      HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生系统异常.", requestURI, e);
        return AjaxResult.error(e.getMessage());
    }

    /**
     * 自定义验证异常
     */
    @ExceptionHandler(BindException.class)
    public AjaxResult handleBindException(BindException e) {
        log.error(e.getMessage(), e);
        String message = e.getAllErrors().get(0).getDefaultMessage();
        return AjaxResult.error(message);
    }

    /**
     * 自定义验证异常
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Object handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
        log.error(e.getMessage(), e);
        String message = e.getBindingResult().getFieldError().getDefaultMessage();
        return AjaxResult.error(message);
    }

    /**
     * 自定义验证异常
     */
    @ExceptionHandler(ConstraintViolationException.class)
    public Object handleConstraintViolationException(ConstraintViolationException exception) {
        var violations = exception.getConstraintViolations();
        var errors = MapUtil.newHashMap();

        List<String> retErrorMsgList = CollUtil.newArrayList();
        violations.forEach(c -> {
            var propertyPath = c.getPropertyPath().toString();
            var errMsg = c.getMessage();
            retErrorMsgList.add(errMsg);
            errors.put(propertyPath, errMsg);
        });
        log.error(errors.toString());

        return AjaxResult.error(retErrorMsgList.toString());
    }


    /**
     * 处理重复索引
     */
    @ExceptionHandler({DuplicateKeyException.class})
    public R<String> exceptionHandler(DuplicateKeyException e) {


        String errorMessage = e.getMessage();
        assert errorMessage != null;
        if (errorMessage.contains("Duplicate entry")) {
            String[] errorMessageArray = StrUtil.subBetweenAll(errorMessage, "'");
            String keyName = errorMessageArray[0];
            return R.fail(StrUtil.BRACKET_START + keyName + StrUtil.BRACKET_END + "名称已存在");
        }

        return R.fail("未知错误");
    }

    /**
     * 处理重复索引
     */
    @ExceptionHandler({org.jooq.exception.IntegrityConstraintViolationException.class})
    public R<String> exceptionHandler(org.jooq.exception.IntegrityConstraintViolationException e) {
        String errorMessage = e.getCause().getMessage();
        if (errorMessage.contains("Duplicate entry")) {
            String[] errorMessageArray = StrUtil.subBetweenAll(errorMessage, "'");
            String keyName = errorMessageArray[0];
            return R.fail(StrUtil.BRACKET_START + keyName + StrUtil.BRACKET_END + "名称已存在");
        }


        return R.fail("未知错误");
    }


}
